I know you really were hoping that they would kick it!
I didn't do all that well, but compared to what I did the last time they saw me shoot they were impressed. The puller was happy. He got a decent tip out of the skinflint.
We did rent a youth model 870 20 gauge after my wife tried to shoot my 12 gauge synthetic with the security barrel and she definitely now understands what it is like when a gun doesn't fit. They are pushing me to get a pistol.
Anyway, one purpose is to keep them familiar with the home security gun and while they may or may not hit a moving target at 36 yards, they should have no problem with shooting across a room.